Basic Info.
Model NO.
309 Stainless Steel Tube
Type
Stainless Steel Pipes
Standard
ASTM, AISI, GB, JIS, EN
Certification
ISO, RoHS, IBR, AISI, ASTM, GB, EN, DIN, JIS
Surface Treatment
Pickling
Surface
Pickling, Polishing, Ba
Delivery State
Solution Annealing
Transport Package
Wooden Box + Strapping
Specification
OD 6.35mm-OD 1219mm
Product Description
Stainless Steel 309 Specification | Stainless Steel 309 / 309S, ASTM A312 Stainless Steel |
SS UNS S30908 Pipe | 309s Stainless Steel Pipe |
ASTM A312 TP 309 - 309S SS Seamless Pipe Size | 4 to 510mm W. T.: 0.5 to 50mm |
WERKSTOFF Welded Pipe Size | 5.0 mm - 1219.2 mm |
ASTM A312 TP 309 - 309S Stainless Steel EFW Pipe size | 5.0 mm - 1219.2 mm |
Stainless Steel WERKSTOFF Pipe Swg & Bwg | 10 Swg., 12 Swg., 14 Swg., 16 Swg., 18 Swg., 20 Swg. |
309 - 309S Stainless Steel Pipe Schedule | SCH5, SCH10, SCH10S, SCH20, SCH30, SCH40, SCH40S, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS |
SS UNS S30908 Swg & Bwg | 10 Swg., 12 Swg., 14 Swg., 16 Swg., 18 Swg., 20 Swg. |
309s Stainless Steel Tube wall thickness | 0.020″ -0.220″, (special wall thicknesses available) |
TP309 SS Length | Single Random, Double Random, Standard & Cut length Pipe & Tube |
ASTM A 358 SS 309 - 309S Finish | Polished, AP (Annealed & Pickled), BA (Bright & Annealed), MF |
ASTM A 312 SS 309 - 309S Form | Round, Hydraulic, 'U' bent or Hollow,LSAW, Boiler, Straight Pipe, Clad Pipe, Rectangular, Square Pipe Etc |
Stainless Steel 309 / 309S Type | Welded, Seamless, ERW, EFW, Fabricated Pipe, 'U' bent or Hollow, Hydraulic, LSAW, Boiler, Straight Tube, Tube Coil, Round, Rectangular, Square Tube etc |
TP309 SS End | Plain End, Beveled End, Treaded Pipe |
ASTM A312 TP 309 - 309S SS Marking | All 309s Stainless Steel Pipe are marked as follows: Standard, Grade, OD, Thickness, Length, Heat No. (Or according to the customer's request.) |
SS TP309 - 309S Application | Oil Pipe & Tube, Gas Pipe & Tube, Fluid Pipe & Tube, Boiler Pipe & Tube, Heat exchanger Tube |
ASTM A312 Stainless Steel Value Added Service | Draw & Expansion as per required Size & Length, Polish (Electro & Commercial) Annealed & Pickled Bending, Machining Etc. |
Marking | All 309s Stainless Steel tubes are marked as follows: Standard, Grade, OD, Thickness, Length, Heat No. (Or according to the customer's request.) |
309s stainless steel tubing Testing & Inspection | Visual inspection • Surface roughness measurement • Helium-leak testing • Scanning Electron Microscopy (SEM) • Auger Electron Microscopy (AES) • Election Spectroscopy for Chemical Analysis (ESCA or XPS) • Particle testing • Moisture testing |
SS 309 Specialize in | Alloy 309 / 309S Large Diameter Pipe |
Stainless Steel 309 Capillary Tube |
Stainless Steel 309S Heat Exchanger & |
309 SS Condenser Tube |
Stainless Steel 309S Test Certificate | Manufacturer Test Certificate |
Laboratory Test Certificate from Govt. Approved Lab. |
Under Third Party Inspection |
Manufacturers of 309 / 309S Stainless Steel Pipe | TISCO stainless steel pipes |
Baosteel stainless steel pipes |
Qingshan stainless steel pipes |
ATI stainless steel, USA |
Tubacex Tubos Inoxidables S.A., Spain |
Schoeller Bleckmann, Austria |
Seah Steel Corporation, South Korea |
Commonly used in high-temperature environments, our chromium-nickel austenitic stainless steel pipes-grades 309, 309S, and 309H-are renowned for their extraordinary resistance to oxidation, heat, and corrosion, thanks to their rich chromium and nickel composition. These stainless steel pipes are exceptionally strong at both ambient and elevated temperatures. The key distinction between 309 and 309S stainless steel is the carbon content; 309S has a lower carbon content, minimizing carbide precipitation and enhancing weldability. Similarly, the 309H stainless steel features a higher carbon concentration compared to the 309, providing superior creep resistance.
Stainless Steel Welded TubesCrafted from stainless steel strips, our stainless steel tubular products are meticulously roll-formed and fusion-welded along the longitudinal seam. Daxun's advanced welding technique ensures no filler metal is used.
309 Stainless Steel Tube Features
- Provides excellent corrosion resistance
- Exhibits higher resistance to marine atmospheres compared to Alloy 304
- Ideal for high-temperature applications, leveraging superior oxidation resistance
- High resistance to sulfite liquors
- Generally classified as heat-resistant alloys
- Boasts a destructive scaling temperature of approximately 2000°F
- Offers outstanding scaling resistance for both continuous and intermittent service
Stainless Steel Drawn TubeOur stainless steel tubular products undergo rolling and re-drawing to achieve the final size. This method is perfect for creating thick-walled, large-diameter tubes that can't be rolled directly to size, offering cost-effective alternatives to seamless tubes. All drawn tubes are bright annealed for superior quality.
Daxun Advantages
- Variety: From small to large diameter stainless steel pipes, we provide an extensive range of sizes and grades, including 304L, 316L, 317L, 321, 309, 347, 2205, and more.
- Flexibility: Our product line includes both seamless and welded steel pipes, tailored to meet specific project requirements.
Quality - Standards: Our stainless steel pipes adhere to rigorous standards such as ISO9001, ABS, NSF/ANSI Standard 61, and NACE MR0175, ensuring unmatched reliability and performance.
- Custom Orders: Need specially sized stainless steel pipes? We offer a range of custom stainless steel pipe solutions at competitive prices, with convenient online ordering.
Stainless Steel Seamless TubeDrawn from the hollow section via piercing or hot extrusion processes, our stainless steel seamless tubes are perfect for applications requiring large diameter-to-wall thickness ratios, offering exceptional external dimensional tolerances.
Quality, Delivery, Inspection
- Daxun conducts stringent quality assurance tests, including flattening, pitting and resistance, mechanical, hardness, material positive identification, and expansion tests. These rigorous assessments guarantee that the material meets the required application standards.
- Throughout the production process, we meticulously measure the diameter, thickness, and surface of each product. Our standard delivery time is 7-15 days. For special sizes, the delivery time may extend to 20 days.
We strictly adhere to our contractual delivery timeframes. - We welcome third-party inspections at our factory.
- Free samples are available for customer testing.
- Support for on-site or video factory inspections.
Daxun Stainless Steel Pipe Manufacturing Capabilities
Our state-of-the-art forming capabilities are truly second to none, featuring advanced extrusion and cold working assets specially designed for manufacturing top-tier tube and pipe products. We proudly house one of the world's largest pilger mills, complemented by our unique hydroforming processes to expertly manufacture high-quality fittings.
Unveiling Daxun's Unmatched Pipe Processing Prowess
As a leading vertically integrated manufacturer, Jiangsu Daxun Alloy Co., Ltd. offers a seamless one-stop shop experience. We have the unparalleled ability to manage entire projects or specific machining tasks, including Straightening, Drilling, Honing, Trepanning, Cutting, Testing, Boring, Machining, Laser Weld, Polishing, Turning, and a variety of Specialized Services.
Elevate Your Projects with Our Bigger, Better Pipe Solutions
Equipped with both vertical and horizontal presses ranging from 12,000 tons to a staggering 35,000 tons, Daxun boasts the most comprehensive and versatile pipe extrusion capabilities globally. Our facilities empower us to manufacture the industry's longest lengths and largest diameter pipes with unmatched precision.
Jiangsu Daxun Alloy Co., Ltd. is a trusted supplier to the power generation market, providing an extensive range of ductwork, boiler tubes, main steam tubes, thermal reheat tubes, flue gas desulfurization units, and other essential products for nuclear, coal-fired, renewable energy, and combined cycle applications.
Chemical composition of 309 stainless steel pipe
Element | % Present (in product form) |
| C, H, P, L | TW2) |
Carbon (C) | 0.2 | 0.2 |
Silicon (Si) | 1.50 - 2.00 | 1.50 - 2.50 |
Manganese (Mn) | 2 | 2 |
Phosphorous (P) | 0.045 | 0.045 |
Sulfur (S) | 0.015 | 0.03 |
Chromium (Cr) | 19.00 - 21.00 | 19.00 - 21.00 |
Nickel (Ni) | 11.00 - 13.00 | 11.00 - 13.00 |
Nitrogen (N) | 0.11 | - |
Iron (Fe) | Balance | Balance |
Mechanical properties of 309 stainless steel pipe
Product Form | | | |
| C, H, P | L | TW* |
Thickness a or diamter d (mm) | a ≤ 12 | d ≤ 25 | a=25 |
Hardness HB max. 1) 2) 3) | 216 | - |
Proof Strength3) | Rp0.2 N/mm2 | 190 | 230 |
Rp1.0 N/mm2 | 230 | 270 |
Tensile Strength | Rm N/mm2 | 500 - 720 | min. 550 |
Elongation min. in % | Long Products | 401) | - |
Flat Products | 0.5 ≤ a/d 3 | 404)5) | 304)5)6) |
3 ≤ a/d | 404)5) | 304)5)6) |
309 Stainless Steel Pipe - Exceptional Quality for Demanding Applications! PHYSICAL PROPERTIES
Density (lb./ in^2) @ RT | | 0.29 |
Modulus of Elasticity in Tension (psi x 10^6) | | 29 |
Specific Heat (BTU/o F/lb.) | 32 to 212 oF | 0.12 |
Thermal Conductivity (BTU/hr/ft^2/ft) | 212oF | 9 |
| 932oF | 10.8 |
Mean Coefficient of Thermal Expansion (in. x 10^-6 per o F) | 32 to 212oF | 8.3 |
| 32 to 600oF | 9.3 |
| 32 to 1,000oF | 9.6 |
| 32 to 1,200oF | 10 |
Electrical Resistivity (micro ohms - cm) | at 70oF | 39.8 |
Melting Point Range (oF) | | 2550 - 2650 |
Oxidation Resistance - Continuous Service(oF) | | 2000 |
Oxidation Resistance - Intermittent Service(oF) | | 1800 |
Address:
B108, No. 32-1, Chengnan Road, Xinwu District, Wuxi, Jiangsu, China
Business Type:
Manufacturer/Factory, Trading Company
Business Range:
Metallurgy, Mineral & Energy
Management System Certification:
ISO 9001, ISO 9000, ISO 14001, ISO 14000, ISO 20000, OHSAS/ OHSMS 18001, IATF16949, HSE, ISO 14064, QC 080000, GMP, BSCI, BRC, SA 8000, QHSE, HACCP, ISO 13485, EICC, ANSI/ESD, SEDEX, ISO 22000, AIB, WRAP, GAP, ASME, ISO 29001, HQE, IFS
Company Introduction:
Founded in 2003, Daxun Alloy is a leading global metal material manufacturer. Headquartered in Wuxi, China, the company has multiple production bases and sales offices around the world. Daxun Alloy focuses on the development, production and sales of various stainless steels, titanium alloys, high-temperature alloys, etc. For general industry, construction, aerospace, energy, chemical industry, medical and other fields.
China, Daxun Metal Group is a global vertically integrated metal material manufacturer and stockist. Daxun can provide finished products and customized full-process services and professional technical services. Currently, the group has 600 employees and covers a total area of 130, 000 square meters. Daxun has a standing inventory of 50, 000 tons of stainless steel, 5, 000 tons of nickel-based alloys, and 2, 000 tons of pure titanium and titanium alloys. The main product forms are metal plates, metal coils, metal pipes, and metal bars. The metal materials produced by Daxun are market leaders for marine, energy, military, general industrial and aerospace applications. In addition, the company also produces seamless pipes, plates, forgings and other metal materials for power generation and oil and gas applications; Commercial and military alloy products; And metal alloys and other metal products for the forging industry.